3 years ago

Given a sphere with a radius of 2 cm, find its volume to the nearest whole

1 answer:

6 0

$\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2 \end{cases}\implies V=\cfrac{4\pi (2)^3}{3}\implies V=\cfrac{32\pi }{3} \\\\\\ V\approx 33.51032163829112\implies \stackrel{\textit{rounded up}}{V=34}$

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How much work is done by a man who uses a force of 7 Newtons to push a box 3 meters across the room?

ElenaW [278]

The formula to calculate work done is -

Work done ( in joule, J) = Force (in Newton) X Distance (in meters)

So, we will use the formula to calculate work done,

Here, force is given as = 7 newtons

Distance is given as = 3 meters

So, work done will be -

Work done ( in joule, J) = 7 Newtons X 3 Meters

<u>Work done ( in joule, J) = 21 J (in joule)</u>

7 0

3 years ago

Read 2 more answers

All of these pleaseeeeeeeeee

kenny6666 [7]

Solving Two- Step Equations:
First you have to add or subtract the number without the variable, x, then divide with the variable with x in it.

1.) -2 - 2=26
Answer: x= -14
Try some on your own, if you still need help comment back!